In an attempt to keep costs down and racing close, many dirt track racing sanctioning bodies across the country institute a mandatory rpm limit in several classes. MSD has been in close contact with many tracks over the years and thanks to their input, as well as that of the racers, we are excited to introduce an rpm limiter designed for the Saturday night racer!

Product Features:

• Plugs into nearly any HEI Distributor
• Adjustable Rev Limit from 3000-9900 RPM
• Records highest rpm reached during race